Quick Definition
σύμφωνος, ον Adj harmonious, agreeing with
Strong's Definition
sounding together (alike), i.e. (figuratively) accordant (neuter as noun, agreement)
Derivation: from G4862 (σύν) and G5456 (φωνή);
KJV Usage: consent
UBS Dictionary of the Greek New Testament
adjc. | -ον | φωνέω
31.15 · Hold a View, Believe, Trust · Agree, Consent
agreement coming to an agreement with, often implying a type of joint decision
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
σύμφωνος, -ov, (σύν and φωνή), fr. [Hom. ἢ. Mere. 51; Soph. ], Plat., Aristot. down, harmonious, accordant, agreeing; τὸ σύμφωνον, thing agreed upon, compact, [ Epict. diss. 1,19, 27]: ἐκ συμφώνου, by mutual consent, by agreement, 1 Co. vii. 5 [cf. W. 303 (285); B. § 139, 20]
Mounce Concise Greek Dictionary
σύμφωνος symphōnos 1x
agreeing in sound; met. harmonious, agreeing, accord, agreement, 1 Cor. 7:5*
Abbott-Smith Greek Lexicon
σύμφωνος, -ον
(< σύν, φωνή), [in LXX: Ec 7:15 (14) (לְעֻמַּת), IV Mac 7:7 14:7 * ;]
agreeing in sound. Metaph., harmonious, agreeing: ἐκ συμφώνου (for exx. from π., v. Deiss., BS, 255), by agreement, I Co 7:5.†
Moulton & Milligan — Vocabulary of the Greek NT
σύμφωνος, “‘agreeing’”’: cf. P Flor I. 485 (a.p. 222) συ]μφώνον γράμματος, i.e, a contract agreeing with another contract (2. συνέθετο) σύνφωνα, and P Oxy VI. 9149 (A.D. 486) κατὰ τὰ μεταξὺ [σύμφ]ωνα, ‘according to the agreement between us.” Cf. Sy/2 653 (= * 736)? (B.c. 92) σταθμοῖς kal μέτροις συμφώνοις ποτὶ τὰ ϑαμόσια. For the phrase ἐκ συμφώνου, “by agreement,” as in 1 Cor 7°, cf. P Par 6315? (B.c. 164), CPR I. 1114 (a.p. 108), P Ryl II. 1627* (A.D. 159) καθὼς ἐκξυζμ) φώνου ὑπηγόParr VII.
Liddell-Scott-Jones — Greek-English Lexicon
σύμφωνος (sumphōnos) — mutual consent. σύμφων-ος, ον, agreeing in sound, harmonious, [Refs 5th c.BC+]; echoing to cries, [Refs]; of a musical accompanist, [Refs]
2. as musical term, in concord or unison with, [Refs 5th c.BC+]; distinguished from ἀντίφωνος and ὁμόφωνος, [Refs 4th c.BC+]; distinguished (as epithet of fifths, fourths, etc.) from ὁμόφωνος (of octaves, double octaves, etc.) and ἐμμελής (of smaller intervals), [Refs 2nd c.AD+]; τὸ σ., ={συμφωνία}, [Refs 5th c.BC+]
3. τὰ σ. consonants, [Refs 2nd c.BC+]
4. having the same speech, [Refs 2nd c.AD+]
II. metaphorically, harmonious, in harmony or proportion, τίνες σ. ἀριθμοί, καὶ τίνες οὔ [Refs 5th c.BC+]; of a person, σ. ἑαυτὸν κατασκευάσαι κατὰ τὸν βίον [Refs 2nd c.BC+]; τὸ σ. harmonious order, [Refs 4th c.BC+]
II.2. harmonious, agreeing, friendly, ἡσυχία [Refs 5th c.BC+]; σ. τινί in harmony or agreement with, σ. αὐτὰ αὑτοῖς [Refs 5th c.BC+]; ἡδοναὶ.. σ. τοῖς ὀρθοῖς λόγοις [Refs 5th c.BC+]; especially concordant, of theory with observed fact, [Refs 4th c.BC+]; rarely with πρός, as πρὸς ἀρετήν, [Refs 5th c.BC+]: with genitive, ὅσα τοῦ γένους ἐστὶ τούτου σύμφωνα [Refs 5th c.BC+]; ἐγένετο πᾶσι σύμφωνον περί τινος they were agreed, [Refs 2nd c.BC+]; σ. ἐστί τινι πρός τινα [Refs]: rarely of persons, σ. γενέσθαι περι τινων [Refs]; of planets, in harmony, [Refs] adverb -νως[Refs 5th c.BC+]; τινι [LXX+1st c.BC+]
II.3. passive, agreed upon, σ. ὅροι [Refs 1st c.BC+]; ἐκ συμφώνου [Refs 4th c.AD+]
III. σύμφωνος, ἡ, ={συμφωνιακή} 11, [Refs 2nd c.AD+]; name of a cough-mixture used by Antonius Musa, [Refs 2nd c.AD+]